General Description

AS3956 Dynamic NFC Sensor Tag IC meets industrial-grade quality standards and provides very high reliability in mission-critical applications and in end products with a long operating lifetime. Thanks to a high sensitivity ISO14443A frontend and high integrated resonance capacitor, AS3956 offers standalone NFC passive tag functionality in a small form factor. The AS3956 dynamic tag acts as a contactless bridge between sensors and any NFC reader, such as a smartphone, through a host microcontroller. Fast system integration and high speed data transfer are guaranteed by the available SPI and I²C interfaces and by optimized protocols (Tunneling mode and Extended mode), allowing bidirectional communication between the device microcontroller and an external NFC compliant device or ISO14443A reader device. AS3956 is able to operate fully powered by the RF field, without any external supply. This, combined with an advanced energy harvesting feature, greatly increases battery life time or even allows battery-less designs.

This product suits for the following applications:

Industrial and Internet of Things (IoT) applications exposed to harsh operating conditions and extreme temperatures ranging from -40°C to +125°C

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Demo Kit for AS3955

AS3955DemoKit

The purpose of the demonstrator is to show all the features and functionalities of the AS3955. The demonstration works with an Android Smartphone or NFC Reader and an AS3955 tag. The main features of the demonstration are: - Demonstration of a Tag 2 Type (T2T) operation - Demonstration of a Tag 4 Type (T4T) operation - File transfer operation - Energy Harvesting The Evaluation kit allows you to supply all components by the PC USB port. No external supply or battery is needed. Except the USB cable (include) no wiring is needed. This allows a fast and comfortable evaluation of the AS3955. Compatibility This demo works with - AS3955 GP GUI version 4.0.8 or higher and FW 4.0.8 or higher - Android version 5.0 or higher

AS3953 ISO 14443A Sensor Interface Tag

AS3953

AS3955 NFC Interface Tag

AS3955

AS3955 NFC dynamic tag IC is the ultimate solution to easily add NFC functionality to electronic devices, pair them with NFC phones and transfer data. Thanks to a high sensitivity ISO14443A front-end and integrated resonance capacitor, AS3955 offers standalone NFC passive tag functionality in a small footprint. Fast system integration and high speed data transfer are guaranteed by the available SPI and I²C interfaces and by optimized protocols (tunneling mode and extended mode), allowing bidirectional communication between the device microcontroller and an external NFC compliant device or ISO14443A reader device. AS3955 is able to operate fully powered by the RF field, without any external supply. This, combined with an advanced energy harvesting feature, greatly increases battery life time or even allows batteryless designs.

PCap04 Capacitance-to-Digital Converter

PCap04

PCap04 is a capacitance-to-digital converter (CDC) with integrated digital signal processor (DSP) for on-chip data post-processing. Its front end is based on ams PICOCAP principle. This conversion principle offers outstanding flexibility with respect to power consumption, resolution and speed. Further, PCap04 covers a wide capacitance input range from a few femtofarads up to several hundreds of nanofarads. It is easy to configure the PCap04 for different capacitance measurement tasks, i.e. single as well as differential sensors in both, grounded or floating connection. The on-chip DSP allows to implement sensor algorithms like linearization and temperature compensation, with data output in a digital (SPI or IIC) or analog (PDM/PWM) way.